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Publication numberEP0851248 A3
Publication typeApplication
Application numberEP19980102083
Publication date26 Jan 2000
Filing date28 Apr 1993
Priority date1 May 1992
Also published asCA2112692A1, CA2112692C, CN1045663C, CN1082717A, CN1238980C, CN1249576A, DE69321548D1, DE69321548T2, DE69333369D1, DE69333369T2, EP0592690A1, EP0592690A4, EP0592690B1, EP0851248A2, EP0851248B1, US5506674, US5671308, WO1993022647A1
Publication number1998102083, 98102083, 98102083.7, EP 0851248 A3, EP 0851248A3, EP-A3-0851248, EP0851248 A3, EP0851248A3, EP19980102083, EP98102083
InventorsYasuji c/o Sumitomo Electric Ind. Ltd. Hattori, Akira c/o Sumitomo Electric Ind. Ltd. Inoue, Katsuya Yamashita
ApplicantNippon Telegraph and Telephone Corporation, Sumitomo Electric Industries, Ltd
Export CitationBiBTeX, EndNote, RefMan
External Links: Espacenet, EP Register
Method for identifying optical line
EP 0851248 A3
Abstract
The invention relates to a method for fabricating a diffraction grating (2064) on an optical line (50) and an optical line (50) comprising such a diffraction grating (2064). Such diffraction gratings serve as reflecting parts for forming an identification code that allows an identification of the optical line, when detecting light is input to one end of the optical line. When several optical lines are arranged, a combination of the relative positions of the diffraction gratings allow an individual identification of the optical line.
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Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
FR2083418A1 * Title not available
GB2210470A * Title not available
US3809455 *22 Sep 19727 May 1974Siemens AgCoupling device for optical wave guides
US4725110 *27 Oct 198616 Feb 1988United Technologies CorporationMethod for impressing gratings within fiber optics
US5098804 *16 Oct 198924 Mar 1992E. I. Du Pont De Nemours And CompanyMultiplexer-demultiplexer for integrated optic circuit
US5104209 *19 Feb 199114 Apr 1992Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of CommunicationsMethod of creating an index grating in an optical fiber and a mode converter using the index grating
Non-Patent Citations
Reference
1 *JOHNSON D C ET AL: "LONG-LENGTH, LONG-PERIOD ROCKING FILTERS FABRICATED FROM CONVENTIONAL MONOMODE TELECOMMUNICATIONS OPTICAL FIBER", OPTICS LETTERS,US,OPTICAL SOCIETY OF AMERICA, WASHINGTON, vol. 17, no. 22, pages 1635-1637, XP000320073, ISSN: 0146-9592
2 *MOREY W W ET AL: "MULTIPLEXING FIBER BRAGG GRATING SENSORS", FIBER & INTEGRATED OPTICS,US,NEW YORK, NY, vol. 10, pages 351-360, XP000619148
Classifications
International ClassificationG02B6/44, G01M11/00, G02B6/38, G02B6/34, H04B10/071
Cooperative ClassificationG02B6/4246, G02B6/02138, G01M11/3118, G02B6/29319, G02B6/02147, G02B6/447, G02B6/3845, G02B6/3885, G02B6/02076, G02B6/29361, G02B6/29316, G02B6/29368, G02B6/29358, G02B6/29349, G02B6/4482, H04B10/071, G02B6/29311
European ClassificationG02B6/44C8T, G02B6/44C9C, G02B6/42C6, H04B10/071, G01M11/31A2, G02B6/02G8, G02B6/293D2T
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